It must be a simple question.
I'm chatting a while with the man. I have his contact in hangouts program (I have not his contact in my phone contacts).
I have added this chat by email. Now I want to see the email. The email is the main identifier, and it must be there. The question become principled.
It is so complicated, I can't figure it out. How can I find the email of contact in hangouts?
Thank you, in advance.